In the early days of the Iron Game, bodybuilders trained hard on strength lifts such as the squat, deadlift, and bench press. Chuck Sipes, winner of the IFBB Mr. Universe in 1960, had massive muscles that enabled him to bench press 570 pounds and lift 250 pounds in the barbell curl. Sipes was a proponent of heavy partial movements, believing that their primary benefit is to increase tendon strength. That’s only one aspect of what partial movements can do for you.